[PATCH] D75071: [AMDGPU] use llvm_unreachable instead of default for rp set

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
rampitec added reviewers: arsenm, kerbowa.
Herald added subscribers: hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.

GCC 9.2 seems to incorrectly issue warning about out of bounds
access. This situation should not happen in any way.


https://reviews.llvm.org/D75071

Files:
  llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp


Index: llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
+++ llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -1820,7 +1820,7 @@
     return getRegPressureLimit(&AMDGPU::SGPR_32RegClass,
                                const_cast<MachineFunction &>(MF));
 
-  return AMDGPUGenRegisterInfo::getRegPressureSetLimit(MF, Idx);
+  llvm_unreachable("Unexpected register pressure set!");
 }
 
 const int *SIRegisterInfo::getRegUnitPressureSets(unsigned RegUnit) const {


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D75071.246272.patch
Type: text/x-patch
Size: 565 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200224/7fdcd558/attachment.bin>